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Finding the Fourth Proportional to 647,298.53, 893,654.70 and 575,479.83

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Solution

The fourth proportional to 647,298.53, 893,654.70 and 575,479.83 is: 794,502.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,298.53 : 893,654.70 = 575,479.83 : x
  2. Step 2: Convert to fraction form
    647,298.53/893,654.70 = 575,479.83/x
  3. Step 3: Cross multiply
    647,298.53x = 893,654.70 × 575,479.83
  4. Step 4: Simplify right side
    647,298.53x = 514,280,254,834.70
  5. Step 5: Solve for x
    x = 514,280,254,834.70/647,298.53
  6. Step 6: Final answer
    x = 794,502.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.